Sleep problems in children with developmental disorders.
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OBJECTIVE: To develop and validate (using subjective and objective methods) a brief infant sleep questionnaire (BISQ) that would be appropriate for screening in pediatric settings. DESIGN: Two studies were performed to assess the properties of the BISQ. Study I compared BISQ measures with sleep diary measures and objective actigraphic sleep measures for clinical (N = 43) and control (N = 57) groups of infants (5-29 months of age). The second study was based on an Internet survey of 1028 respondents who completed the BISQ posted on an infant sleep web site. RESULTS: In study I, BISQ measures were found to be correlated significantly with sleep measures derived from actigraphy and sleep diaries. BISQ measures (number of night wakings and nocturnal sleep duration) were the best predictors for distinguishing between clinical and control samples. High test-retest correlations (r >.82) were demonstrated for BISQ measures for a subsample of 26 infants. Study II provided a developmental perspective on BISQ measures. The study demonstrated that BISQ measures derived from a large Internet survey provided developmental and sleep ecology-related findings that corresponded to the existing literature findings on sleep patterns in early childhood. CONCLUSIONS: The findings provide psychometric, clinical, and ecologic support for the use of the BISQ as a brief infant sleep screening tool for clinical and research purposes. Potential clinical cutoff scores are provided.
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In order to investigate the prevalence of a disordered condition due to shift work (DCSW) and the influence of sleep disorders on the performance of working and driving, a preliminary questionnaire was conducted on industrial workers. Among 332 shift workers, 110 (33.1%) were found to suffer from DCSW. Subjects with DCSW were found to be working shorter periods in shift work than were subjects without DCSW. The rate of sleepiness-related troubles while driving and working were highest in the subjects with probable hypersomnia. This finding encourages the need for early diagnosis and treatment of sleep disorders among industrial workers.
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As a part of an epidemiologic survey of dementia in a community of aged persons, correlation between sleep complaints and physical illness and senility were studied. A total of 3302 randomly sampled aged individuals(aged > or = 65 years) were studied using a questionnaire. In this sample the prevalence of poor sleep and habitual snoring did not increase with age. The prevalence of excessive daytime sleepiness showed an increase with age. Male predominance of habitual snoring and female predominance of poor sleep were observed. Female predominance of excessive daytime sleepiness was noted among the aged 70 and over. Age-related excessive daytime sleepiness was significantly correlated with senility.
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The aim of this study was to investigate and interpret ideas inherent in sleep and diet consultations concerning infants in Swedish child health services. Data were obtained through semi-structured interviews of professionals employed in these services. A qualitative method with a phenomenological approach was applied to analyse the data. The results indicate that professionals have underlying conceptions. They considered that when parents force food on their child, this is a violation of the child's integrity. This view is based on the idea that such actions restrict the child's right to self-determination. In the participants' opinions, when the child is forced to sleep well, this is not regarded as a violation of the child's integrity, but is perceived as support of the child's autonomy. An underlying theoretical view may be that parents' time can be saved if the child becomes independent of the parents at as early an age as possible.
Part-time farmers who hold off-farm jobs may be at risk for injuries because of impaired performance resulting from inadequate sleep. For this study, 1004 part-time male Kentucky farmers completed a telephone interview for the 1994 to 1995 National Institute for Occupational Safety and Health-funded Farm Family Health and Hazard Surveillance Project. Questions were included about demographics, sleep habits, and injury occurrence. Twelve percent of the farmers reported an injury requiring medical intervention in the previous year. Farmers reported sleeping an average of 7.6 hours daily. Approximately 6.7% of the sample had three symptoms of sleep apnea. Although hours of sleep were not related to injury incidence, sleep medication use (odds ratio [OR] = 2.11, 95% confidence interval [CI] = 1.01 to 4.40) and presence of three sleep apnea symptoms (OR = 2.48, 95% CI = 1.13 to 5.41) were related to injury incidence. These data support the need for further research to examine sleep habits and promote strategies that reduce the risk for injuries caused by lack of sleep.
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